1964 Map of Island Park

About this map

Henrys Fork snakes through the dense woodland of the Targhee National Forest in this mid-century survey of the Idaho high country. The map documents a landscape defined by its waterways and early 20th-century infrastructure, including the Island Park Reservoir and the Union Pacific rail line that skirts the western edge of the forest. Notable settlements and administrative outposts such as Macks Inn PO, Flat Rock Guard Sta, and the Island Park Ranger Station reflect the area's role as a hub for forest management and seasonal recreation. Local ranching and transport history is preserved through labels like the Elk Creek Ranch and Island Park Siding, while several Gravel Pits indicate the material sourcing required for the region's development. The confluence of the Buffalo River and Henrys Fork serves as a central geographic anchor for this sparsely populated mountain terrain.